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Table 2
Observational parameters for the three L-type BDs.
System name | RA | Dec | Obs. date (UT) | K (mag) | iTime (s) | S/N | Seeing(″) | Std star |
---|---|---|---|---|---|---|---|---|
J0835 | 08 35 42.53 | −081915.85 | 2023-01-02 | 11.14 ± 0.02 (5) | 1200 | 70 | ~0.7 | pi.05 Ori |
J0501 | 05 01 24.09 | −001049.19 | 2023-02-02 | 12.96 ± 0.04 (5) | 3600 | 20 | ~0.8 | HD 31331 |
J0500 | 05 00 21.01 | 033045.40 | 2023-02-28 | 12.06 ± 0.02 (5) | 5400 | 40 | ~0.7 | 3 Hya |
Notes. The parameters include observation date, apparent K-band magnitudes from the 2MASS catalogue (Cutri et al. 2003), total integration time, S/N at 2166 nm, and standard star used for telluric corrections.
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